CN106163681B - Apparatus and method for contactless roller cleaning - Google Patents
Apparatus and method for contactless roller cleaning Download PDFInfo
- Publication number
- CN106163681B CN106163681B CN201580016746.4A CN201580016746A CN106163681B CN 106163681 B CN106163681 B CN 106163681B CN 201580016746 A CN201580016746 A CN 201580016746A CN 106163681 B CN106163681 B CN 106163681B
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- China
- Prior art keywords
- nozzle
- roll
- air
- outer cover
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
- B08B5/026—Cleaning moving webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
- B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0229—Suction chambers for aspirating the sprayed liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
Abstract
The present invention proposes a kind of roll for cleaning the equipment for processing strip material（1）Device, be provided with least one fluid stream being directed at into the roll（1）Surface（2）Nozzle（5）With at least one suction channel（8）.At least one nozzle（5）With at least one suction channel（8）It is arranged on outer cover（4）In and the outer cover（4）Cover the roll（1）Circumference a part.At least one nozzle（5）Relative to the roll（1）Surface（2）Vertical line with+/ 45 ° of angle and with the spacing less than 50mm away from the roll（1）Surface（2）Set.
Description
Background technology
The rolling and leveling for the sheet metal strip in metal, being particularly for example made up of steel, aluminium, magnesium or other nonferrous metal
During can be inevitably generated from roll in itself or strip surface fine grit.In order that the fine grit will not example
Mass defect is such as produced in strip surface by polluting or imprinting, it is necessary to be removed.
Common method is removed by the injection of liquid (such as water, emulsion or the like).In this case
People are often referred to as wet roll or wet leveling.But as an alternative, especially for special product and quality requirement
Speech, for example, be particularly susceptible to corrosion product, rolling or leveling can also be carried out under conditions of no liquid.This feelings
Condition is often referred to as dry roll or dry leveling.
For roller cleaning, in the prior art by machinery, contact method be used for it is dry roll or dry leveling, such as brush and
Scrape, by the particle of attachment or, the schmutzband of firm rolling removes these methods from roller surface.Conventional cleaning systems, example
Brush device such as based on contact operation principle.For abrasion the reason for, it is necessary to often change and clean these systems and lead
Cause the abrasion of the abrasiveness of roller surface.Therefore it is multiple faults and maintenance intensive by the roller cleaning of the system of contact.
In addition, the solution obtained in the prior art is difficult to install and actually using in existing milling train or evener supplement
Middle serious wear.Therefore, these systems are also related to relatively high operating cost in addition to investment cost.
It is used to clean rolling for band process equipment (particularly milling train or evener) it is an object of the invention to provide a kind of
Roller, the particularly apparatus and method of backing roll and/or working roll.Particularly it is used for dry roll or dry leveling.Particularly avoid herein
The shortcomings that solution well known in the prior art (high abrasion, maintenance intensive, the planform ... of complexity).
Evener or milling train generally have a pair of working rolls directly contacted with strip surface and backing roll to (so-called four-roller
Formula milling train) or multiple backing rolls system (such as sixfold formula evener or other systems), these backing rolls are stabilized and driven
Dynamic working roll.
It is dry roll or dry flattening course in can cause substantial amounts of depositing dust (" bright metal flake (Flitter) " or " leveling dirt
(Dressierstaub) "), especially from the fine grit fallen on band and working roll, it makes schmutzband in roller surface
Generation is worked on backing roll first.The schmutzband can be peeled off or is transferred on working roll, thus cause to be pressed into band
Surface.
The content of the invention
Equipment according to the present invention or the method according to the present invention are used for continuously cleaning by the suction and blowing device of combination and rolled
Roller.The caused fine grit during rolling is continuously removed by constantly blowing off roller surface and is so prevented in roll table
The formation of schmutzband on face.It can directly be discharged by the combination with integrated aspirator and roll dirt.It thereby eliminating and roll
The complete wrapping of machine or evener.
Blowing off for roller surface is carried out with being pumped in common wrapping (outer cover) for dust (" bright metal flake "), the bag
Around positioned near surface to be cleaned, but the surface is not touched.
The whole work that the zone of action of the outer cover and the gas being blown into or fluid (air blast) covers roll to be cleaned is loose
Degree, width of the working width at least equal to sheet metal strip.Therefore, air blast by slit injector or has in an ideal way
The jet beam of multiple single-nozzle compositions sprays, and these nozzles extend at least across the width of band on the width of roll
Degree.Consideration in terms of for economy, ideally it is used as gas using air or compressed air.
For optimal operation, the more accurately observation of the fluid to flowing in and out has conclusive work
With.Therefore must be so so quantitative to the air-flow of entrance, i.e. it causes coming off for the particle adhered on roller surface.
This, nozzle form also has special meaning.In one embodiment, the nozzle is with Venturi nozzle (Venturid ü se)
Form implement, it is possible thereby to improve the amount and speed of air-flow.In another embodiment, the such shape of the geometry of nozzle
Into, i.e. make air-flow intensively alignment surface by using Coanda effect (Coanda-Effekt).
The air-flow in outer cover must be so designed, is not in be advantageous to smooth ash in suction hood to cover inside outside
Wall on the so-called dead band that deposits.Typically by the edge and transition passage of cavetto and/or the continuous surface of circulation as far as possible
Ground ensures the flowing relation of stratiform, i.e. as much as possible without turbulent flow.Further it is necessary to the suction of outer cover is adjusted, in order to incite somebody to action
Smooth ash fully removes from outer cover.
Must so adjust herein and supply gas and be vented, in order to which superpressure will not be produced in outer cover, the superpressure make particle by
Thrown away in gap between outer cover and surface.
The present invention explained below is used for the one embodiment for cleaning the roll for the equipment for being used to process strip material, its
In, at least one nozzle is provided with, fluid stream is directed at the surface of the roll by the nozzle, and is provided with least one suction
Passage.At least one nozzle and at least one suction channel are arranged in a common outer cover, wherein, the outer cover covers institute
State a part for the circumference of roll.
The pumping power (that is, volume flow) of at least one suction channel being arranged in outer cover is more than by means of at least one
The introduced fluid stream of the individual nozzle that is arranged in the outer cover.In one preferred embodiment, the volume flow of exhaust is set
It is set to bigger by 5% to 50% than the air-flow of introducing.
At least one nozzle at least covers the width of roll, and the width of the roll corresponds to the width of strip material.At least
One nozzle relative to the vertical line on the surface of roll with +/- 45 °, it is preferably +/- 10 °, particularly 0 ° angle and with less than
Surface of 50mm, preferably 1mm to the 30mm spacing away from the roll is set.
In order to cover above-mentioned width, at least one nozzle is disposed adjacent as slit injector or as with multiple
The jet beam of single-nozzle is formed, wherein, single-nozzle in itself can be with point-like or slot-shaped formation.
Sprayed with least 20m/s, the preferably greater than fluid stream of 40m/s speed or air-flow from least one nozzle.
Maximum nozzle pitch depends on nozzle opening and nozzle form and thus caused fluid velocity.For being opened with 4mm
For the nozzle of mouth, the nozzle pitch is about 50mm.Realized under conditions of the nozzle pitch away from roller surface about 1-30mm
Particularly preferred cleaning action.
In order to improve cleaning action, in one embodiment, use is provided with least one nozzle or its transfer pipeline
In the device being brought at least temporary transient wear particle in air-flow.It is such as known in corundum base in the field of jet processing
On particle.
Changed and for maintenance purpose and roll in order to be adapted from different roller diameters, according to the cleaning of the present invention
Device is arranged on milling train in a manner of it can adjust.
In another embodiment, be provided with least one other nozzle, its preferably with strip material width phase
On corresponding width extension and outside outer cover in the scope with adjacent roll or with the contact position of strip material, it is excellent
It is selected on outbound course and sets.
Brief description of the drawings
Other features and feature of the present invention can be by accompanying drawing and below by being drawn in the description of schematic diagram.These accompanying drawings are only
Schematically show the embodiment of citing.Identical part is marked with same reference.
Fig. 1 shows the cleaning device according to the present invention along the direction observation of roll width.
Fig. 2 show from the direction of roller surface another according to the present invention cleaning device.
Fig. 3 show from the direction of roller surface another according to the present invention cleaning device.
Fig. 4 shows the milling train with the cleaning device according to the present invention.
Embodiment
Figure 1 illustrates the roll (1) that one has the schmutzband (3) being attached on roller surface (2).According to this hair
Bright outer cover (4) is close to the roller surface (2), wherein not touching the roller surface (2).Along width side in the outer cover (4)
To at least one nozzle (5) is set, there is the air-flow (6) more than 20m/s, preferably greater than 40m/s speed to be blown from the nozzle
Onto the roller surface (2) with schmutzband (3).Consideration in terms of for economy, the speed more than 500m/s no longer have
Meaning.In addition, for the reason for the noise protection and preferably shorter than 300m/s speed.By air-flow (6) make schmutzband (3) from
Come off on roller surface (2) and caused particle (7) is taken away by least one suction channel (8) by exhaust (9).
The volume flow of exhaust (9) so determines herein, i.e. it is more than by least one nozzle (5) and the body of the air-flow (6) of offer
Product.
Fig. 2 shows the outer cover (4) looked up from the side of roller surface, wherein, at least one nozzle (5) is embodied as stitching
Gap type nozzle (5.1).This kind of slit injector (5.1) or shallow slit injector as gas gauge or air knife (Airknife)
Know.Slit injector (5.1) extends on the width of outer cover (4) and is generally disposed at centre in one embodiment.
In the embodiment shown, two suction channels (8) are set on outer cover (4), wherein the from the direction of rotation of roll
Extend in the major part of width before one suction channel 8.1 is located at slit injector (5.1) and in outer cover (4).Extraly
Second suction channel (8.2) is arranged on into slit injector (5.1) to observe on posterior side along the direction of rotation of roll.
The symmetrical structure that is shown in Fig. 2 it is not mandatory that, but it has the advantage that, i.e. can be independent of rotation side
To and installed.
One in two suction channels (8.1) or (8.2) is only set in another embodiment.It is it is possible thereby to real
The smaller physical dimension of existing outer cover (4), this simplifies the installation of outer cover (4) and mobility.Suction channel (8) can also replace
The width shown is made up of multiple single suction channels being disposed adjacent.
Figure 3 illustrates embodiment equally from the direction of roller surface.But at least one nozzle herein
(5) formed in the form of jet beam (5.2), the jet beam is made up of multiple single spray groups being disposed adjacent in the direction of the width.
In jet beam (5.2), other extra single-nozzles (5.3) are set on preceding side in a rotational direction, extra by this
Single-nozzle ruptures schmutzband (3) before jet beam (5.2), it is possible thereby to further improve cleaning action.In volume
Before outer single-nozzle (5.3) or between multiple suction channels (8.3) are set.In embodiment as shown in Figure 2, spraying
Second suction channel (8.2) is set after mouth beam (5.2).Certainly, second suction channel (8.2) need not conduct as shown in figure
The single passage that substantially extends on the whole width of outer cover (4) and implement, but multiple single suctions can also be divided into and led to
Road (8.3).
Fig. 4 schematically shows a milling train with two working rolls (1.1), and pending band (10) passes through this
Between two working rolls.These working rolls (1.1) are supported by a pair of backing rolls (1.2).In a device in accordance with the invention,
Outer cover (4) can either be arranged on the working roll (1.1) and can also be arranged on the backing roll (1.2).Considering quality requirement
In the case of carry out the laying of outer cover (4) and therefore carry out on the approaching side of band (10) preferably on working roll (1.1) clear
It is clean.
The other suction channel (11) for aspirating free particles is provided with another embodiment.This is other
Suction channel (11) preferably has the width corresponding with the width of strip material and in the working roll (1.1) and band (10)
Contact position region in set on outbound course.Other suction channel (11) can additionally or alternatively be set
Near the contact position between contact position or backing roll (1.2) between working roll (1.1) and backing roll (1.2).
Reference
1 roll
1.1 working roll
1.2 backing roll
2 roller surfaces
3 schmutzbands
4 outer covers
5 nozzles
5.1 slit injector
5.2 jet beam
5.3 single-nozzle
6 air-flows
7 particles
8 suction channels
8.1 first suction channels
8.2 second suction channels
8.3 single suction channels
9 exhausts
10 bands
11 other suction channels
Claims (20)
1. one kind cleans the roll (1 of the equipment for processing strip material (10)；1.1；1.2) device, be provided with to
Air-flow (6) is directed at the roll (1 by few one；1.1；1.2) nozzle (5 on surface (2)；5.1；5.2；And at least one 5.3)
Individual suction channel (8；8.1；8.2；8.3), it is characterised in that at least one nozzle (5；5.1；5.2；5.3) taken out with least one
Inhale passage (8；8.1；8.2；8.3) it is arranged in an outer cover (4), the outer cover (4) covers the roll (1；1.1；1.2)
A part for circumference, at least one nozzle (5；5.1；5.2；5.3) roll (1 is at least covered；1.1；1.2) with the banding
The corresponding width of the width of material (10), at least one nozzle (5；5.1；5.2；5.3) relative to the roll (1；1.1；
1.2) vertical line on surface (2) is with +/- 45 ° of angle and with the spacing less than 50mm away from the roll (1；1.1；1.2)
Surface (2) set.
2. device according to claim 1, it is characterised in that at least one suction being arranged in the outer cover (4) is led to
Road (8；8.1；8.2；8.3) pumping power is more than by means of at least one nozzle (5 being arranged in the outer cover (4)；5.1；
5.2；5.3) air-flow (6) introduced.
3. device according to claim 1, it is characterised in that at least one nozzle (5) as slit injector (5.1) or
Person is as jet beam (5.2) formation with multiple single-nozzles (5.3) being disposed adjacent.
4. device according to claim 1, it is characterised in that have at least 20m/s speed the air-flow (6) to
A few nozzle (5；5.1；5.2；5.3) sprayed in and the air-flow (6) is made up of air.
5. device according to claim 1, it is characterised in that at least one other nozzle is provided with, in the roll
(1；1.1；1.2) observed on direction of rotation, the other nozzle is arranged at least one nozzle (5；5.1；5.2；5.3) it
Before.
6. device according to claim 1, it is characterised in that the particle of abrasiveness can be transported at least one nozzle
(5；5.1；5.2；5.3) in transfer pipeline and/or at least one nozzle (5；5.1；5.2；5.3) in.
7. device according to claim 1, it is characterised in that the inner surface of at least described outer cover (4) only has adjacent
The transition passage of cavetto and/or continuous plane.
8. device according to claim 1, it is characterised in that at least one nozzle (5；5.1；5.2；5.3) perpendicular to institute
State roller surface (2) and set with 1mm to 30mm spacing away from the roller surface (2).
9. device as claimed in any of claims 1 to 8, it is characterised in that at least one other suction channel
(11) on the width corresponding with the width of the strip material (10) the outside of outer cover (4) with adjacent roll (1；
1.1；1.2) or with being set in the range of the contact position of strip material (10).
10. device according to claim 4, it is characterised in that the speed is more than 40m/s.
11. device according to claim 9, it is characterised in that at least one other suction channel (11) is in output side
Set up.
12. the roll (1 for cleaning the equipment for being used to process strip material (10)；1.1；1.2) method, wherein, by means of
At least one nozzle (5；5.1；5.2；5.3) air-flow (6) is made to be directed at the roll (1；1.1；1.2) surface (2) and by
In at least one suction channel (8；8.1；8.2；8.3) bright metal flake and the dirt to have come off are taken away, it is characterised in that at least
One nozzle (5；5.1；5.2；And at least one suction channel (8 5.3)；8.1；8.2；8.3) it is arranged in outer cover (4), it is described
Outer cover (4) covers the roll (1；1.1；1.2) part for circumference, by means of at least one nozzle (5；5.1；5.2；
5.3) air-flow (6) is made relative to the roll (1；1.1；1.2) vertical line on surface (2) with +/- 45 ° of angle and with
Spacing less than 50mm is away from the roll (1；1.1；1.2) surface (2) is at least blown on a width, and the width is corresponding
Width in the strip material (10).
13. according to the method for claim 12, it is characterised in that be arranged on by least one in the outer cover (4)
Suction channel (8；8.1；8.2；8.3) suction is than by means of at least one nozzle (5 being arranged in the outer cover (4)；5.1；
5.2；5.3) the bigger volume flow of air-flow (6) introduced.
14. according to the method for claim 12, it is characterised in that have at least 20m/s speed the air-flow (6) from
At least one nozzle (5；5.1；5.2；5.3) sprayed in and use air as the jet of the air-flow (6).
15. according to the method for claim 12, it is characterised in that be extraly ejected to by least one other nozzle
The air-flow (6) of a few other point type, in the roll (1；1.1；1.2) observed on direction of rotation, the other spray
Mouth is arranged at least one nozzle (5；5.1；5.2；5.3) before.
16. according to the method for claim 12, it is characterised in that wear particle is temporarily, at least conveyed at least one
Individual air-flow (6).
17. according to the method for claim 12, it is characterised in that at least one nozzle (5；5.1；5.2；5.3) perpendicular to
The roller surface (2) and with 1mm to 30mm spacing away from the roller surface (2) set.
18. the method according to any one in claim 12 to 17, it is characterised in that lead to by an other suction
Road (11) on the width corresponding with the width of the strip material (10) the outside of outer cover (4) with adjacent roll
(1；1.1；1.2) or with aspirating other volume flow (9) in the range of the contact position of strip material (10).
19. according to the method for claim 14, it is characterised in that the speed is more than 40m/s.
20. according to the method for claim 18, it is characterised in that by the other suction channel (11) in output side
It is drawn up other volume flow (9).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014004487.4 | 2014-03-28 | ||
| DE102014004487.4A DE102014004487A1 (en) | 2014-03-28 | 2014-03-28 | Non-contact roller cleaning device and method therefor |
| PCT/EP2015/056106 WO2015144631A1 (en) | 2014-03-28 | 2015-03-23 | Device for the contact-free cleaning of rollers, and method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106163681A CN106163681A (en) | 2016-11-23 |
| CN106163681B true CN106163681B (en) | 2018-03-06 |
Family
ID=52727134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580016746.4A Active CN106163681B (en) | 2014-03-28 | 2015-03-23 | Apparatus and method for contactless roller cleaning |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170136511A1 (en) |
| EP (1) | EP3122480B1 (en) |
| CN (1) | CN106163681B (en) |
| DE (1) | DE102014004487A1 (en) |
| ES (1) | ES2664445T3 (en) |
| WO (1) | WO2015144631A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUB20154683A1 (en) * | 2015-10-15 | 2017-04-15 | Puleo S R L | APPARATUS AND METHOD FOR THE UNCONDITION OF THE ROTARY CYLINDER HOLES OF A RIPPER. |
| KR102127690B1 (en) * | 2017-08-17 | 2020-06-29 | 주식회사 포스코 | Scale discharge device |
| CN109201540B (en) * | 2018-08-24 | 2021-11-30 | 中冶南方工程技术有限公司 | Online roller surface cleaning device and system |
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| CN1135552A (en) * | 1995-02-24 | 1996-11-13 | 沃伊夫苏尔泽造纸机器有限公司 | Cleaning device |
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2014
- 2014-03-28 DE DE102014004487.4A patent/DE102014004487A1/en active Pending
-
2015
- 2015-03-23 WO PCT/EP2015/056106 patent/WO2015144631A1/en active Application Filing
- 2015-03-23 CN CN201580016746.4A patent/CN106163681B/en active Active
- 2015-03-23 EP EP15711747.4A patent/EP3122480B1/en active Active
- 2015-03-23 ES ES15711747.4T patent/ES2664445T3/en active Active
- 2015-03-23 US US15/128,591 patent/US20170136511A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135552A (en) * | 1995-02-24 | 1996-11-13 | 沃伊夫苏尔泽造纸机器有限公司 | Cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3122480B1 (en) | 2018-01-31 |
| WO2015144631A1 (en) | 2015-10-01 |
| ES2664445T3 (en) | 2018-04-19 |
| US20170136511A1 (en) | 2017-05-18 |
| CN106163681A (en) | 2016-11-23 |
| DE102014004487A1 (en) | 2015-10-15 |
| EP3122480A1 (en) | 2017-02-01 |
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